What is RakeSearch?

The enormous size of the diagonal Latin squares space makes it unfeasible to enumerate all its objects straightforwardly in reasonable time. So, in order to discover the structure of this space, sophisticated search methods are needed. In RakeSearch project, we implement an application that picks up separate pairs of mutually orthogonal DLSs, which allows to reconstruct full graphs of their orthogonality. You can contribute to our research by running a free program on your computer.

For account creation please use a Crunch_4Science invitation code.

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User of the Day

User profile Profile [AF>Amis des Lapins] Nabz37
Hello, I am Nabz37, engineer in energy relative domain. I live in France and i am 59 yo. I worry about the future of our Earth, wildlife and mankind,...


Results of the first half of March 2019!
Dear participants!

February is passed, calendar winter is over, cold winds have weakened, but have not been yet replaced by warm weather and tea with berries jam as usual still for dinner! Meet the next berry - Cowberry (or Vaccínium vítis-idaéa)! After the first half of the month, 206 participants received this badge and we send our congratulations to:

JZD and [AF>Amis des Lapins] Phil1966 (L'Alliance Francophone),
adams and [AF>Amis des Lapins] Nabz37 (L'Alliance Francophone),
Server and [DPC]Division_Brabant~Cow_tipping (Dutch Power Cows),
arkiss and [AF>Amis des Lapins] Ceclo (L'Alliance Francophone),
rebel9 and [AF>Libristes]MortelKni (L'Alliance Francophone),
raddoc and [AF>Occitania]franky82 (L'Alliance Francophone),
Heikki and [AF>Libristes]cguillem (L'Alliance Francophone),
Millenium and [AF>Libristes] Pascal (L'Alliance Francophone),
matemajor and Международная база наблюдений комет (Karelia),
Sengieffe and Karelian Center for Gender Studies (Karelia),
Drumheller and [AF] Skinny06 (L'Alliance Francophone),
Hartmut 53 and Skywalker@Athens (Macedonia is Greek!),
mike765321 and Michael H.W. Weber (Rechenkraft.net),
GESUCHTMAN and Hal Bregg (The Scottish Boinc Team),
fragamemnon and [SG-Aktiv] Yoghibear (SETI.Germany),
WTBroughton and samuraiii (The Knights Who Say Ni!),
Dylan Delgado and Egon olsen (Meisterkuehler.de Team),
EG (SETI.USA) and LeChat51X (L'Alliance Francophone),
Michael Polla and Steve Dodd (The Planetary Society),
Bok (SETI.USA) and Rhodan71 (L'Alliance Francophone),
User (Karelia) and Тестовая учетная запись (Karelia),
Morgan the Gold and Sergey Kovalchuk (BOINC@Ukraine),
Bryan (SETI.USA) and Matthias Lehmkuhl (SETI.Germany),
FourOh (SETI.USA) and [SG]KidDoesCrunch (SETI.Germany),
EXT64 ([H]ardOCP) and EarlyBird@Zircons (BOINC@Taiwan),
saiz (Team China) and Tom_unoduetre (Rechenkraft.net),
frankhagen (gigo) and [SG-FC] dingdong (SETI.Germany),
Casey ([H]ardOCP) and joe carnivore (Rechenkraft.net),
ale4316 (Ukraine) and owensse (The Planetary Society),
Sphynx (SETI.USA) and Johannes Elsner (Planet 3DNow!),
Tejas (U.S. Army) and [SG-FC]schilli74 (SETI.Germany),
pututu ([H]ardOCP) and Dylan111111 (Dutch Power Cows),
Oleg (Russia Team) and Jerzy_Przytocki (BOINC@Poland),
ID4 (SETI.Germany) and Sergey Zhikhorev (Russia Team),
kekkonen (Karelia) and [DPC] hansR (Dutch Power Cows),
philip-in-hongkong and entigy (Team England (Boinc)),
-jb- (SETI.Germany) and Птицы Петрозаводска (Karelia),
Kodeks IT (Karelia) and Dmitriy Otroschenko (Ukraine),
KR Center (Karelia) and http://vk.com/boinc (Karelia),
Werinbert (Free-DC) and Shaman (Czech National Team),
Francis Butts (USA) and Uwe-Bergstedt (SETI.Germany),
ИСУ ПБиОТ (Karelia) and ChristianVirtual ([H]ardOCP),
purplecfh (SETI.USA) and ERBrouwer (Dutch Power Cows),
VogeL (SETI.Germany) and pestis (Czech National Team),
el_teniente (Russia) and fax (Meisterkuehler.de Team),
cpuid (SETI.Germany) and [SG-2W]Kurzer (SETI.Germany),
JonS (UK BOINC Team) and killik (Czech National Team),
morgan (Team Norway) and ShmyaCluster (Crystal Dream),
Soran (SETI.Germany) and planetclown (Crunching@EVGA),
axels (SETI.Germany) and PDW (OcUK - Overclockers UK),
Coleslaw ([H]ardOCP) and polarbeardj (Crunching@EVGA),
conf [MM] (SETI.USA) and boceli (Czech National Team),
runs2far ([H]ardOCP) and Fardringle (TeAm AnandTech),
mimeq (BOINC@Poland) and MaxAMD400 (Rechenkraft.net),
Derivator (Gridcoin) and ClaudiusD (Rechenkraft.net),
phoenicis ([H]ardOCP) and robbysites (Crunching@EVGA),
Fornax (SETI.Germany) and Pjotr Panski (SETI.Germany),
motqalden ([H]ardOCP) and Skivelitis2 (Overclock.net),
jozef j (Russia Team) and arctic light (SETI.Germany),
pons66 (SETI.Germany) and Astronomy.Karelia (Karelia),
Gaucho (SETI.Germany) and Tatka (Czech National Team),
MacRuh (SETI.Germany) and Rudy Toody (TeAm AnandTech),
whowhere (AUGE@BOINC) and [SG] ronaldo (SETI.Germany),
necavi (BOINC@Poland) and Ralfy (BOINC Confederation),
Conan (Cobar Spiders) and [B@P] Daniel (BOINC@Poland),
cluster-krc (Karelia) and stoneageman (XtremeSystems),
lydy1993 (Team China) and [SG-FC]shka (SETI.Germany),
citerra (Russia Team) and BritishBob (Overclock.net),
xoltar (SETI.Germany) and Merten Pallanca Maximilien,
Topper (SETI.Germany) and Bruce Kennedy (BOINCstats),
Nexuss (SETI.Germany) and desktop64 (desktop64@home),
RoE187 (SETI.Germany) and ReaDy (Astronomy.Ru Forum),
KPX (Czech National Team) and Vincent Dark (Team China),
Roadranner (SETI.Germany) and freestman (Chinese Dream),
bcavnaugh (Crunching@EVGA) and Ole Matsen (SETI.Germany),
Dark Angel (XtremeSystems) and bill1024 (Crunching@EVGA),
genseed (Russia Team) and PC-COLLEGE (SETI.Germany),
RFGuy_KCCO ([H]ardOCP) and hoarfrost (Crystal Dream),
VietOZ (XtremeSystems) and LCB001 (Hardware Canucks),
Timothy Mullican (USA) and Tuna Ertemalp (Microsoft),
somanyroads (SETI.USA) and Landjunge (Planet 3DNow!),
JagDoc (Planet 3DNow!) and ChelseaOilman ([H]ardOCP),
GLeeM (TeAm AnandTech) and HK-Steve (Crunching@EVGA),
yodap (Crunching@EVGA) and SG-Booster (SETI.Germany),
SEARCHER (BOINC@Pfalz) and Stimpy (Rechenkraft.net),
Gipsel (Planet 3DNow!) and HenkM (Dutch Power Cows),
[H]atp1916 ([H]ardOCP) and XSmeagolX (SETI.Germany),
glennpat (XtremeSystems) and muzzdiez (SETIKAH@KOREA),
Dirk Broer (AMD Users) and declis (Rechenkraft.net),
JohnMD (BOINC@Denmark) and pschoefer (SETI.Germany),
matszpk (BOINC@Poland) and trebotuet (SETI.Germany),
BOINC.RU (Russia Team) and CoolAtchOk (Russia Team),
Soderstromm (Gridcoin) and 427jmf (Crunching@EVGA),
alex_253 (Russia Team) and ahferroin7 (BOINCstats),
sorcrosc (BOINC.Italy) and mmonnin (Overclock.net),
okuzonosb (Team China) and Crunch3r (BOINC United),
СУНТД Карелия (Karelia) and Hoshione (SETI.Germany),
zzuupp (TeAm AnandTech) and herby44 (Planet 3DNow!),
Freezing (SETI.Germany) and Dr Who Fan (BOINCstats),
Chipotle (Ars Technica) and Dingo (BOINC@AUSTRALIA),
OldChap (XtremeSystems) and Shmya-2 (Crystal Dream),
ssjy806 (SETIKAH@KOREA) and Opolis (Crunching@EVGA),
kashi (BOINC@AUSTRALIA) and sergamena (Russia Team).

We also want to provide the link on the author of the beautiful image from which we made the badge - AI Leino from Pixabay.
Some "hardware news" - we made a small upgrade of project server, increase MySQL instance buffer and hope, that helps to work of the project and reduce its response time.
16 Mar 2019, 15:28:12 UTC · Discuss

Technical works on March 15, 06:00-18:00 UTC
Dear participants!

Tomorrow, at March 15, the server will experience periods of unavailability since 06:00 to 18:00 UTC due to technical works.

Thank you for attention and happy crunching!
14 Mar 2019, 13:34:47 UTC · Discuss

Flyby graphs. Part 2
Dear folks!

On preliminary results page, we publish the second part of Flyby graphs!

[R9_000565630_02] - 38 vertices and 94 edges. The third known graph with 38 vertices, but with 94 edges (in early finded graphs numbers of edges equals to 106 and 96).

[R9_000572497_01] - 113616 vertices and 675264 edges. The new second known largest graph from orthogonal diagonal Latin squares of rank 9 and the third over entire processed space of ODLS! Also, you can see this animation (13.4 Mb) of gradual drawing of this graph.

[R9_000585425_01] - 224 vertices and 1112 edges. The first graph with 224 vertices and only the sixth - in range of [200 .. 299] vertices in a graph.

[R9_000604259_01] - 4048 vertices and 6968 edges. Another interesting graph arises between large graphs with 2388 and 9056 vertices! Also, you can see this animation (4.7 Mb).

[R9_000698093_02] - 56 vertices and 284 edges. New construction from future of space exploration. :)

[R9_000704747_01] - 72 vertices and 294 edges. Astonishing graph! Triangle-based figure with "vertex elements" like some of the previously detected graphs!

[R9_000704751_02] - 120 vertices and 924 edges. One more triangle-base graph with a figure above each angle!

Thank you for your participation and happy crunching! :)
9 Mar 2019, 15:01:34 UTC · Discuss

February 2019 totals
Dear folks!

In February we (all crunchers of the project) set several high records:

    About 9% of tasks were completed
    8850 results with permutational pairs from ODLS were received
    237 participants received a badge for the find

And at the 1st of March project research crosses the 60% completion mark! The luckiest participants of the second half of the month were:

JZD and [AF>Amis des Lapins] Phil1966 (L'Alliance Francophone),
XAVER and [AF>Amis des Lapins] Nabz37 (L'Alliance Francophone),
pauno and [DPC]Division_Brabant~Cow_tipping (Dutch Power Cows),
adams and [AF>Occitania]franky82 (L'Alliance Francophone),
arkiss and [AF>Libristes] Pascal (L'Alliance Francophone),
rebel9 and [AF>Libristes] Elorak (L'Alliance Francophone),
Heikki and Международная база наблюдений комет (Karelia),
Progger and Karelian Center for Gender Studies (Karelia),
Millenium and Skywalker@Athens (Macedonia is Greek!),
matemajor and [AF] Skinny06 (L'Alliance Francophone),
tehhustler and Michael H.W. Weber (Rechenkraft.net),
Hartmut 53 and Hal Bregg (The Scottish Boinc Team),
mike765321 and zelandonii (L'Alliance Francophone),
Joe Noroian and Egon olsen (Meisterkuehler.de Team),
fragamemnon and Jacob Rumbolt (Canadian Circuitry),
Bok (SETI.USA) and Steve Dodd (The Planetary Society),
saiz (Team China) and LeChat51X (L'Alliance Francophone),
EXT64 ([H]ardOCP) and Тестовая учетная запись (Karelia),
FourOh (SETI.USA) and Thyler Durden@P3D (Planet 3DNow!),
Sphynx (SETI.USA) and Rhodan71 (L'Alliance Francophone),
frankhagen (gigo) and [DPC]Blah.NET (Dutch Power Cows),
Casey ([H]ardOCP) and EarlyBird@Zircons (BOINC@Taiwan),
Come_Visit_Hawaii and owensse (The Planetary Society),
ale4316 (Ukraine) and joe carnivore (Rechenkraft.net),
pututu ([H]ardOCP) and Johannes Elsner (Planet 3DNow!),
Oleg (Russia Team) and [SG-FC]schilli74 (SETI.Germany),
cc-smokey (CC-Team) and [SG-FC] dingdong (SETI.Germany),
-jb- (SETI.Germany) and Jerzy_Przytocki (BOINC@Poland),
jrle77 (IPN Mexico) and BlisteringSheep (Ars Technica),
Kodeks IT (Karelia) and Hubert Koziński (BOINC@Poland),
KR Center (Karelia) and Sergey Zhikhorev (Russia Team),
Werinbert (Free-DC) and [DPC] hansR (Dutch Power Cows),
Inya (SETI.Germany) and Wabi CZ (Czech National Team),
purplecfh (SETI.USA) and entigy (Team England (Boinc)),
axels (SETI.Germany) and http://vk.com/boinc (Karelia),
VogeL (SETI.Germany) and Dmitriy Otroschenko (Ukraine),
el_teniente (Russia) and eLPeCKo (Czech National Team),
JonS (UK BOINC Team) and Птицы Петрозаводска (Karelia),
Coleslaw ([H]ardOCP) and fax (Meisterkuehler.de Team),
Derivator (Gridcoin) and planetclown (Crunching@EVGA),
cpuid (SETI.Germany) and polarbeardj (Crunching@EVGA),
mimeq (BOINC@Poland) and ShmyaCluster (Crystal Dream),
conf [MM] (SETI.USA) and Uwe-Bergstedt (SETI.Germany),
phoenicis ([H]ardOCP) and [SG-2W]Kurzer (SETI.Germany),
xoltar (SETI.Germany) and Theadalus (Dutch Power Cows),
Fornax (SETI.Germany) and Shaman (Czech National Team),
jozef j (Russia Team) and PDW (OcUK - Overclockers UK),
cluster-krc (Karelia) and killik (Czech National Team),
Conan (Cobar Spiders) and ERBrouwer (Dutch Power Cows),
taurec (SETI.Germany) and boceli (Czech National Team),
MacRuh (SETI.Germany) and tcd (Meisterkuehler.de Team),
pons66 (SETI.Germany) and arctic light (SETI.Germany),
RoE187 (SETI.Germany) and Pjotr Panski (SETI.Germany),
whowhere (AUGE@BOINC) and [SG] ronaldo (SETI.Germany),
necavi (BOINC@Poland) and [SGa]HeNiNnG (SETI.Germany),
genseed (Russia Team) and MaxAMD400 (Rechenkraft.net),
Nexuss (SETI.Germany) and Astronomy.Karelia (Karelia),
lydy1993 (Team China) and Rudy Toody (TeAm AnandTech),
citerra (Russia Team) and [B@P] Daniel (BOINC@Poland),
Timothy Mullican (USA) and stoneageman (XtremeSystems),
VietOZ (XtremeSystems) and Ralfy (BOINC Confederation),
somanyroads (SETI.USA) and Dark Angel (XtremeSystems),
JagDoc (Planet 3DNow!) and RobertN (Dutch Power Cows),
Kalomel (BOINC@Poland) and Bruce Kennedy (BOINCstats),
Gipsel (Planet 3DNow!) and nexiagsi16v (SETI.Germany),
GLeeM (TeAm AnandTech) and [SG-FC] oki (SETI.Germany),
JohnMD (BOINC@Denmark) and ReaDy (Astronomy.Ru Forum),
yodap (Crunching@EVGA) and Vincent Dark (Team China),
RFGuy_KCCO ([H]ardOCP) and [SG] Felix (SETI.Germany),
Soderstromm (Gridcoin) and Ole Matsen (SETI.Germany),
okuzonosb (Team China) and LCB001 (Hardware Canucks),
SEARCHER (BOINC@Pfalz) and Landjunge (Planet 3DNow!),
sergamena (Russia Team) and Shmya-2 (Crystal Dream),
Natalia (Crystal Dream) and hoarfrost (Crystal Dream),
Crunch3r (BOINC United) and HK-Steve (Crunching@EVGA),
kashi (BOINC@AUSTRALIA) and SG-Booster (SETI.Germany),
zzuupp (TeAm AnandTech) and Roadranner (SETI.Germany),
СУНТД Карелия (Karelia) and PC-COLLEGE (SETI.Germany),
Lazarus-uk (BOINCstats) and ChelseaOilman ([H]ardOCP),
herby44 (Planet 3DNow!) and Nightmare (XtremeSystems),
alnitak2019 ([H]ardOCP) and CoolAtchOk (Russia Team),
Hoshione (SETI.Germany) and Rymorea (Turk Seti Team),
candido (Portugal@Home) and declis (Rechenkraft.net),
[B^S] fred (BOINCstats) and Dennis-TW (SETI.Germany),
ssjy806 (SETIKAH@KOREA) and glennpat (XtremeSystems),
427jmf (Crunching@EVGA) and trebotuet (SETI.Germany),
HenkM (Dutch Power Cows) and XSmeagolX (SETI.Germany).

Thank you for all participants for attention and donation of CPU time of your computers!
2 Mar 2019, 7:33:31 UTC · Discuss

Totals of structures from ODLS of Rank 1 - 8
Dear participants!

As you remember, in slides about project essentials we wrote about structures of rank 7 and 8 that "being prepared to publication". From 2016 until 2019 this structures were discovered and investigated in collaboration with Gerasim@Home project team and several days ago Eduard Vatutin completed and published this research and publish the List of combinatorial structures from ODLS of rank 1 - 8: (En), (Ru). Enjoy their interesting forms!
23 Feb 2019, 17:59:35 UTC · Discuss

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